package com.turingitclub.yutian.lesson02;

import org.apache.commons.lang3.StringUtils;

/**
 * Hello world!
 *
 */
public class App {
    public static void main( String[] args ) {
        System.out.println( "Hello World!" );
        System.out.println(  StringUtils.isNotBlank(AppSon.call()));
    }
}
